Fix Expr::Classify to correctly classify ExtVectorElementExprs.  PR16204.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@184123 91177308-0d34-0410-b5e6-96231b3b80d8
Compute the visibility of static local variables consistently.  Fixes PR16208.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@184137 91177308-0d34-0410-b5e6-96231b3b80d8